6-5/8 inch 27 lb/ft C95 Intermediate Casing
C95 grade seamless alloy intermediate casing pipe, 6-5/8 inch OD, 27 lb/ft, heavy 14 mm wall thickness with integral premium threads for directional drilling. Precisely classified under HTS 7304.29.31.20 for threaded, thick-walled alloy steel oil/gas casing under 215.9 mm OD.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If carbon steel equivalent
Non-alloy steel casing has separate material-based subheading.
If general mechanical tubing
Lack of drilling-specific design features moves to generic tube classification.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Document connection running torque values; common pitfall is length variation affecting customs weight declaration
• Use nitrogen purging for internal protection during transit
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